Trunnion clamp for conductors



May 5, 1936. J. J. TAYLOR TRUNNION CLAMP FOR CONDUCTORS Filed May 29,1935 Patented May 5, 1936 UNITED STATES PATENT OFFICE The Ohio BrassCompany,

corporation of Ohio Mansfield, Ohio, a

Application May 29, 1935, Serial No. 24,006

2 Claims.

This invention relates to supports for electrical conductors and has forone of its objects the provision of a trunnion type clamp for conductorswhich is economical to manufacture and efficient in use and in which thetrunnion may be formed of a different material from the body of theclamp.

A further object of the invention is to provide a. device of the classnamed which shall be of improved construction and operation.

Other objects and advantages will appear from the following description.

The invention is exemplified by the combination and arrangement of partsshown in the accompanying drawing and described in the followingspecification, and it is more particularly pointed out in the appendedclaims.

In the drawing:

Fig. 1 is an elevation with parts in section showing one embodiment ofthe present invention.

Fig. 2 is a transverse section on line 22 of Fig. 1.

Fig. 3 is a fragmentary section on line 33 of Fig. 2.

Referring to the drawing, the numeral in designates a seat member forsupporting an electrical conductor, the member being channel shaped incross section and curved downwardly at its ends to permit the cable toleave the seat on a line tangent to the curve in the seat. The cable isheld in the seat by a keeper piece ll clamped against the cable byJ-bolts l2 and I3. The side walls of the seat are extended outwardlyadjacent the center of the clamp, providing pockets l4 and 15 in Whichthe J-bolts are located. Extending up from the floor of these pocketsand cast integral with the seat H] are ears [6 and I1 disposed one ateach side of the cable seat. The ears I6 and I! and the side walls ofthe pockets l4 and [5 are provided with alined openings for receivingtrunnion pins l8 and I9. Each of the pins l8 and I9 is provided with areduced middle 20, which reduced portions engage openings 2| insupporting links 22. The openings 2| are of sufiicient size to permitthe flanges on the ends of the pintle pins l8 and I9 to passtherethrough.

In assembling the device, the links 22 are inserted in the openingsbetween the walls of the pockets l4 and I5 and the respective ears I6and I1 and move downwardly until the openings 2| aline with the openingsin the side walls and ears. The pintle pins 18 and H! are then placed inposition and the links 22 raised until the reduced middle portions 20 ofthe pins engage the lower peripheries of the openings 2|. Cotter pins 23are then secured in perforations in the links 22 above the upper edgesof the ears l6 and I! and the side walls of the pockets. Thisarrangement will lock the pintle pins I8 and I9 in position with theirouter ends substantially flush with the outer faces of the side walls ofthe pockets.

In a device of this kind, it has been found desirable to make the pintlepin of a strong noncorroding material, such as stainless steel, butbecause of the high cost of this material and because it is not aseasily worked as other materials, it is evidently impractical to formthe whole body of the support of stainless steel. With the constructionshown and described above, it is possible to make the pintle entirelyseparate from the other parts of the clamp so that the body of the clampmay be formed of malleable iron or other suitable material while thepintle itself may be formed of stainless steel. The arrangementdescribed above makes it possible to assemble the device thus formed sothat the pintle, although a separate piece, is securely locked in placeand performs its function as well or better than if it were formedintegral with the other parts.

I claim:

1. A conductor support comprising a pair of members supported one fromthe other, one of said members having spaced portions, the other of saidmembers having a tongue extending between said spaced portions, saidspaced portions and tongue having circular openings therethrough all ofsubstantially the same diameter and adapted to be moved into alinement,a pintle pin extending through said openings and having cylindrical endportions of approximately the same diameter as said circular openingsbut movable freely through said openings and having a reduced middleportion for engaging the opening in said tongue to permit said membersto be shifted to bring said openings out of exact alinement for lockingsaid pin in said openings and a stop for holding said members in theirshifted position with said openings sufficiently offset to retain saidpin in place.

2. A conductor support comprising a seat member having pockets atopposite sides thereof, links extending into said pockets, said linksand the Walls of said pockets having circular openings all ofsubstantially the same diameter arranged to be moved into registrationwith one another, pintle pins for engaging said openings to connect saidlinks with said seat member, said pintle pins having cylindrical endportions of approximately the same diameter as the circular openings butmovable freely through said openings and having reduced middle portionsto permit said links to be shifted transversely to the axis of the saidopening after the pintle pins are in place to lock said pintle pins inposition, and stops for locking said links in their shifted positionrelative to said pockets with the openings in said links offset relativeto the openings in the walls of said pockets to lock said pins in saidopenings.

JOHN J. TAYLOR.

